CN116857662A - Installation and construction method of scraper slag dragging machine - Google Patents
Installation and construction method of scraper slag dragging machine Download PDFInfo
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- CN116857662A CN116857662A CN202310776025.XA CN202310776025A CN116857662A CN 116857662 A CN116857662 A CN 116857662A CN 202310776025 A CN202310776025 A CN 202310776025A CN 116857662 A CN116857662 A CN 116857662A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J1/00—Removing ash, clinker, or slag from combustion chambers
- F23J1/06—Mechanically-operated devices, e.g. clinker pushers
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Abstract
The invention discloses an installation construction method of a scraper slag dragging machine, which comprises the following steps: installing an electric moving-out rail; step two: installing a walking wheel set frame device; step three: installing a slag dragging machine body; step four: the device comprises a mounting platform, a rail and a slag hopper; step five: installing a tensioning bracket and a tensioning wheel assembly; step six: installing a hydraulic driving system; step seven: mounting and paving a cast stone plate; step eight: installing a chain scraper system; step nine: installing a cooling and chain flushing water system; step ten: installing an electrical control system; step eleven: according to the equipment debugging, the installation method is used for assisting in installing the machine body through the track, so that the selection of installation references is simplified, the equipment installation construction sequence is optimized, the installation efficiency and the installation quality can be improved, and the installation progress is accelerated.
Description
Technical Field
The invention belongs to the technical field of engineering and equipment maintenance, and particularly relates to an installation and construction method of a scraper slag dragging machine.
Background
At present, most of domestic and foreign thermal generator sets adopt a scraper slag dragging machine as furnace bottom slag discharging equipment. The slag dragging machine is also used as furnace bottom sealing equipment, high-temperature furnace slag falls into water of an upper tank body of the slag dragging machine and is granulated, a driving chain wheel set, an upper guide wheel set, a lower guide wheel set and a tail tensioning wheel set of a driving redirecting device are used for redirecting, a chain scraper is used for forming a closed loop, the granulated slag falls out and enters a slag bin or enters a slag crusher for treatment, and wet slag dehydrated by the slag bin is transported to a dust field or comprehensively utilized by a user from outside an automobile.
The scraper slag dragging machine has the advantages that the number of parts is large, the installation precision requirement is high, once the assembly of the equipment deviates, the interference between the parts and the lower header of the boiler are easily caused, and the installation standard and acceptance standard of the equipment or similar equipment are not available in China at present.
Disclosure of Invention
In view of the above, the invention provides a method for installing and constructing a scraper slag dragging machine.
The specific scheme is as follows:
the installation and construction method of the scraper slag dragging machine comprises the following steps,
step one: installing an electric moving-out rail;
step two: installing a walking wheel set frame device;
step three: installing a slag dragging machine body;
step four: the device comprises a mounting platform, a rail and a slag hopper;
step five: installing a tensioning bracket and a tensioning wheel assembly;
step six: installing a hydraulic driving system;
step seven: mounting and paving a cast stone plate;
step eight: installing a chain scraper system;
step nine: installing a cooling and chain flushing water system;
step ten: installing an electrical control system;
step eleven: and (5) debugging equipment.
In the first step, the method for installing the electric moving-out track is that the installation elevation takes zero meter of a main factory building as a reference, a center column of a boiler steel frame is taken as a center reference point for installation of a scraper slag extractor and a foundation, a steel rail installation reference line is drawn on a steel rail foundation, steel rails are placed on the steel rail foundation along the reference line according to the identification sequence, embedded parts on the bottom surfaces of the steel rails are leveled by connecting plates and bolts, and finally the steel rails and the embedded parts are welded firmly.
In the second step, the walking wheel set device is installed by placing walking wheels on paved tracks, placing a slag dragging machine body on a bracket of the walking wheel set, adjusting gaps between the tracks and wheel edges, and welding the bracket of the walking wheel set with the slag dragging machine body.
In the third step, the installation method of the slag dragging machine body comprises the following steps,
s1): marking each section of the slag conveyor body, and marking each interface position with a character. When in on-site butt joint, the sections with the same sign of two adjacent sections of the machine body are butted together, and the sections start to be orderly from the tail section of the machine body to the head section of the machine body, so that all planes and joints are ensured to be in the same horizontal plane and are flush, and then the joints are welded;
s2): after the machine body is completely assembled, performing kerosene penetration or water adding experiments on all welding seams of the machine body interface, and ensuring that the machine body is not leaked after being filled with water;
s3): after the penetration experiment is complete, the butt joint of the bottom of the upper groove body of the machine body is full of the wear-resistant steel plates, and the joint is polished smoothly.
In the fifth step, the tensioning bracket and the tensioning wheel assembly are installed, comprising the following steps,
p1): the tensioning wheel frame is connected and fastened by bolts, the studs are adjusted after other components are installed, and after the tensioning wheel assembly can freely slide on the track, the diagonal braces are welded firmly;
p2): the tensioning wheel assembly comprises a sliding block which is arranged on a track, and the tensioning wheel assembly is vertically hoisted by a chain block after being arranged, so that the tensioning wheel assembly can freely slide up and down;
p3): the oil cylinders on two sides are installed in place and fixed by a pin shaft;
p4): the oil tank is fixed on the bracket, and a hydraulic pipeline is connected and fixed according to the requirement of a pipeline diagram;
p5): and welding the hydraulic station support on the tail body, and then installing a hydraulic oil tank on the tensioning hydraulic station support at the tail section of the body.
The installation of the hydraulic drive system comprises the following steps,
m1): the hydraulic motor is installed, the hydraulic motor is inspected and cleaned before installation, the shaft end of the dragging shaft is cleaned, and a locking disc bolt of the hydraulic motor is screwed;
m2): the power station is firmly fixed on the bracket by bolts and nuts, and then the hydraulic pipeline between the power station and the motor is connected.
The step of tightening the locking disc bolt of the hydraulic motor is that,
m11): measuring gaps among the pressing rings at different positions, wherein the difference value of the gaps is controlled within 1 mm;
m12): before the bolts are screwed to 50% of the specified torque value of 490KNm, the bolts on the coupler are diagonally screwed in pairs and the gap between the pressing rings is monitored;
m13): after tightening to 50% of the specified torque value for the bolt, serial numbers were marked on the bolt, and then the torque wrench was set to the specified maximum value, and the bolts were sequentially tightened. Each bolt is screwed down for 1/4 circle each time until reaching a designated torque value;
m14): when the specified torque value is reached, it is further confirmed that all bolts have reached the specified torque value.
The steps of installing the electrical appliance control system are as follows:
t1): the control cabinet is arranged on the bracket, and the control cabinet is firmly connected with the bracket;
t2): the connection between the electric control cabinet and the slag dragging machine can ensure that the slag dragging machine can transversely open to a maintenance position;
t3): and installing a broken chain protection device and debugging on site.
The device commissioning includes the steps of,
j1 A) of: the device should be fully checked before debugging and starting, including:
j11 A) of: whether other articles and sundries irrelevant to equipment exist on each part of the slag dragging machine or not, and if so, the slag dragging machine needs to be cleaned completely;
j12 A) of: checking whether bolts on the parts are screwed, and whether lubricating oil or lubricating grease is filled in each rotating part and the bearing seat;
j13 A) of: checking whether all the blades are in place with the chain link locking pins assembled in place;
j14 Checking the oil level in the oil tank of the hydraulic drive system and the hydraulic tensioning system;
j15 Checking whether the chain is already tensioned, it being necessary to check whether the chain is tensioned before each start-up, the chain not being allowed to start the motor in a relaxed state.
J16 A) of: confirming whether the wiring of the electric cabinet and the steering of the motor are correct or not;
j2 A) of: a button operation test, the button operation test comprising the steps of,
j21 A) of: the driving button is pressed to drive, the stopping button is pressed to stop, and the slag dragging machine is not provided with a reversing function;
j22 A) of: the following experiment can be carried out on the slag conveyor with the electric self-starting mechanism:
when the forward button is pressed, the slag dragging machine can move forward on the steel rail, and when the button is released, the forward movement is stopped.
When the backward movement button is pressed, the slag dragging machine can move backward on the steel rail, and when the button is released, the forward movement is stopped.
The electric self-driving mechanism for transversely moving the slag dragging machine can be engaged with the traveling wheel, and the slag dragging machine can be pulled by a rope to transversely move after the electric self-driving mechanism is disengaged from the traveling wheel;
j3 A) of: in the cooling water overtemperature alarm test, when the water temperature exceeds 60 ℃, a temperature relay arranged at the upper part of a water bin of the slag dragging machine can give an alarm in an electric control way so as to adjust the cooling water quantity;
the temperature relay is connected with the electric control and the probe is inserted into the water container with the temperature display, when the water temperature is slowly increased to 57-60 ℃, the electric control gives an alarm; after the temperature relay is debugged, the temperature relay is arranged in a reserved seat hole on the bin wall of the slag dragging machine;
j4 Debugging of a broken link detection system
After the slag dragging machine is started, a thin iron sheet is used for shielding the induction end of the proximity switch, and whether the chain breakage detection device outputs a chain breakage signal is checked;
j5 A) of: the debugging of the hydraulic tensioning system is the debugging of each working pressure and energy accumulator;
after the installation and debugging of the electric and mechanical devices are finished, the device runs in idle mode for 2 hours at the speed of the slow, medium and fast scraping plates in sequence, and the conditions of bearing temperature rise, engagement of chain links and chain wheels, connection of chain links and scraping plates and oil-water leakage are observed, whether abnormality exists or not, and if abnormal shutdown exists, the abnormal shutdown is eliminated.
The invention provides a method for installing and constructing a scraper slag conveyor, which simplifies the selection of installation references, optimizes the installation and construction sequence of equipment, can improve the installation efficiency, quickens the installation progress, and ensures the installation quality and the stable operation of the equipment after installation by assisting the installation of a machine body through a track.
Drawings
Fig. 1 is a schematic view of the overall arrangement of the drag chain scraper.
Fig. 2 is a top view of fig. 1.
Fig. 3 is a side view of fig. 1.
Fig. 4 is a schematic cross-sectional view of a walking track.
Wherein 1 is an electric removal track; 2 is an electric removing device; 3 is a slag dragging machine body; 4 is a platform, a fence and a slag hopper; 5 is a hydraulic tensioner; 6 is a hydraulic drive device; 7 is an upper and lower guide wheel device; 8 is a chain flighting system; and 9 is a cooling and chain flushing water system, 10 is a boiler steel frame.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the present invention. It will be apparent to those skilled in the art that the described embodiments are only a part, but not all, of the implementations of the invention, and that all other embodiments, based on which those skilled in the art will come to lie within the scope of the invention without making any inventive effort.
As shown in fig. 1 to 4, an installation construction method of a scraper slag extractor comprises the following specific steps:
step one, installing an electric moving-out rail
The installation elevation takes zero meter of the main factory building as a reference, the center column of the boiler steel frame 10 is used as a center reference point for installation of the scraper slag dragging machine and the foundation, and the electric moving-out track is installed according to drawings and requirements provided by the design institute by scribing.
The central column of the boiler steel frame 10 is used as a central datum point for installation of a scraper slag extractor and a foundation, a steel rail installation datum line is drawn on the steel rail foundation, the steel rails are placed on the steel rail foundation along the datum line according to the identification sequence, embedded parts on the bottom surfaces of the steel rails are leveled by using connecting plates and bolts, and finally the steel rails and the embedded parts are welded firmly.
Step two, mounting walking wheel set frame device
The slag extractor is installed properly before leaving the factory, the slag extractor body is placed on a paved track on a construction site, then the slag extractor body is placed on a support of a travelling wheel frame of the slag extractor body, the gap between the track and the wheel edge is adjusted, and the gap is welded with the slag extractor body (see the drawing of a scraper slag extractor travelling mechanism for details). And (3) injection: the walking wheel motor-speed reducer is not installed firstly, after the machine body of each section of the slag dragging machine is properly adjusted, the machine body is installed and removed from the motor-speed reducer, and the gear meshing side gap is adjusted.
Step three, installing a slag dragging machine body
1. Order of installation and general requirements
The machine body is divided into a plurality of sections from the tail to the head. The installation of the machine body is sequentially from the tail section of the machine body to the head section of the machine body. Each segment has been marked during manufacture and each interface location has been marked with a character. When in on-site butt joint, two sections of adjacent machine bodies with the same sign are butted together. And then thoroughly checking adjacent parts such as a bottom plate, a side plate and the like of the machine body, and welding joints after ensuring that all planes and joints are flush at the same horizontal plane (the welding joints are all continuous fillet welds, and the detailed description is shown in related drawings). The longitudinal center plane of each section of machine body is ensured to be in the same plane. And pay attention to the running gear on the former section of organism should be installed before the next section of organism is docked.
2. Positioning and mounting of body inclined lifting section
Before installing and welding the body of the inclined lifting section, the brackets are assembled respectively according to related drawings. And (3) welding a bracket: the frame is positioned according to the position in the total assembly drawing, then the frame is connected with the channel steel (and the connecting plate) and welded firmly, and the support is fixed by the auxiliary support after the welding is finished. The upper frame is then welded.
3. After the machine body is completely assembled, kerosene permeation or water adding experiments are carried out on all welding seams of the machine body interface, so that the machine body is ensured not to leak after being filled with water.
After the penetration experiment is complete, the butt joint of the bottom of the upper groove body of the machine body is full of wear-resistant steel plates (beveled welding), and the joint is polished smoothly.
Note that: when the machine body is installed, the levelness of each section of machine body after connection should be paid attention to, and the parallelism of the connecting lines of the driving chain wheels and the guide wheels at two sides of the groove body is ensured.
Step four, mounting platform, rail and slag falling hopper
1. Head platform, fence and slag falling hopper
The welding can be performed only by arranging the upper planes of the slag hopper and the head platform and the upper plane of the section steel on the first section of the machine body according to an assembly drawing on site, and then the welding of the ladder and the fence is performed after the platform is welded.
2. According to the assembly drawing of the scraper slag dragging machine platform escalator, welding can be performed only by aligning the upper plane of the tail platform frame with the upper plane of the section steel on the tail section of the machine body on site, and then welding the ladder and the fence after the platform is welded.
Step five, installing tensioning support and tensioning wheel assembly
In order to facilitate shipment and storage, the tensioning system is removed when the equipment leaves the factory, and the equipment is assembled on site according to the following requirements. Assembling sequence: tensioning wheel frame (containing rail), tensioning wheel component, oil cylinder, oil tank and hydraulic pipeline.
1. Tensioning wheel frame
The wheel frame is connected and fastened by bolts according to the positions in the drawing, the studs are adjusted after other components are installed, and after the tensioning wheel assembly can freely slide on the track, the diagonal braces are welded firmly.
2. Tensioning wheel assembly
The tensioning wheel assembly comprises a sliding block which is arranged on a track, and the tensioning wheel assembly is vertically hoisted by a chain block after being arranged, so that the tensioning wheel assembly can freely slide up and down.
3. Installation of oil cylinder
The oil cylinders on two sides are installed in place and fixed by the pin shafts, and attention is paid to cleaning of oil inlet and outlet ports of the oil cylinders (the protecting cover of the oil port cannot be detached before connecting pipelines).
4. Tensioning system hydraulic pipeline
Before the pipeline is installed, the oil tank is fixed on the bracket, and the hydraulic pipeline is connected and fixed according to the requirement of a pipeline diagram. All the pipelines should be cleaned (such as internal rust and acid cleaning) before being installed, so as to ensure the cleaning of the pipe fittings. Before and during the starting of the system, all pipe joints should be checked whether all the pipe joints are screwed up or not, and whether leakage occurs or not is checked. After the pipeline connection is finished, about 60 liters of No. 46 hydraulic oil is filled in the oil tank, but the hydraulic system cannot be started before the scraper is not assembled completely. The specific details are seen in the specification of the hydraulic tensioning mechanism.
Note that: (1) The packaging on the connection protection device and the connector must be kept removable until final assembly;
(2) The joint body is carried carefully, if the joint body is carelessly dropped on the ground, whether scratches occur or not and whether the seal is out of position or not is checked;
(3) All joints may loosen due to thermal expansion or vibration and need to be re-tightened after normal start-up.
5. Installation of a tensioner hydraulic station
And welding the hydraulic station support on the tail body according to the position shown in the assembly drawing of the scraper slag dragging machine, and then installing a hydraulic oil tank on the tensioning hydraulic station support at the tail section of the body.
Step six, installing a hydraulic driving system
1. Installation of hydraulic motor
Before the hydraulic motor is installed, please carefully read the "hydraulic drive system installation and use instruction" and the installation process should be strictly performed according to the requirements of the related motor part in the "hydraulic drive system installation and use instruction".
Before installation, the hydraulic motor is inspected and cleaned, and the shaft end of the dragging shaft is required to be cleaned. The motor is then mounted to the desired position in the drive assembly drawing and the lock plate bolts are tightened as required by the hydraulic motor specifications.
And (5) cutting: before the motor is installed, the grease on the inner hole of the motor coupling and the surface of the dragging shaft must be wiped dry, the lubrication of the motor should not be added-!
Tightening rule of locking disc bolt (hydraulic motor instruction):
a. when the bolts are screwed down, in order to avoid the non-parallelism of the two pressing rings, the gap between the pressing rings needs to be measured at several positions in the whole process, and the difference of the gap is controlled within 1 mm.
b. The bolts on the coupling were diagonally paired and the gap between the clamping rings was closely monitored before tightening to 50% of the specified torque value (490 KNm) for the bolts.
c. After tightening to 50% of the specified torque value for the bolt, serial numbers were marked on the bolt, and then the torque wrench was set to the specified maximum value, and the bolts were sequentially tightened. Each bolt is tightened 1/4 turn at a time until the specified torque value is reached (which may require at least 15-20 turns).
d. When the specified torque value is reached, it is further confirmed that all bolts have reached the value.
The torque arm should be mounted in the position shown in the mounting diagram. When the torque arm cannot be inserted into the support, the nut for fixing the support of the torque arm can be loosened to adjust the support. After the motor is installed in place, the nut is screwed down according to the required torque value.
2. Fixing of power station and connection of pipeline
The required position of the power station general layout diagram is firmly fixed on the bracket by bolts and nuts, and then the hydraulic pipeline between the power station and the motor is connected according to the requirements of the hydraulic drive system installation and use instruction and the pipeline diagram. Such as a hose, is passed through the platform to cut a hole in the platform. Before and during the system start-up, it should be checked whether all joints are screwed up or not, and whether leakage occurs or not. After the pipeline connection is finished, the No. 46 antiwear hydraulic oil is filled into the oil tank according to the requirements in the installation and use instruction of the hydraulic drive system.
The installation of the drive system hydraulic lines should also take care of the terms noted in the installation of the tensioning system hydraulic lines.
Step seven, installing and paving cast stone plate
And (3) performing site construction by an installation unit, and paving according to related standards and requirements. After installation, the device is required to be flat and has no blocking phenomenon.
Step eight installation of chain scraper system
The chain is installed first and then the scraping plate is installed. The chain installation should be strictly carried out according to the principle of paired installation of chains on two sides of the scraping plate (marks are arranged before delivery) so as to compensate the manufacturing error of the chain. The chain is guided in segments by the rotation of the drag mechanism during installation, and the chain must be placed in a vertical position before being guided into the sprocket. After the chain is connected, the locking pin with the size of the chain connecting ring is knocked in by a copper rod until the end face of the pin is flush with the side face of the chain connecting ring.
Note that: the chain is in a loose state after the installation of all the chains is finished, so that the installation of the scraper is facilitated, and the automatic tensioning system of the chain can be started to automatically tension after the installation of the scraper is finished.
The scraping plate is generally arranged in the lower bin of the horizontal section machine body. The links can be pulled to both sides during installation to insert the flight connector into the chain. The distance between the scrapers takes the length value of 10 chain rings, and the direction of the scrapers is noted when the scrapers are installed. The scraper and the chain can be installed simultaneously, one section is installed, and then the next section is installed.
Step nine installation cooling and chain flushing water system
The chain flushing pipeline is arranged on the shell according to the position in the water pipeline diagram, the position of the spray head is adjusted to be aligned with the chain, and then the water pipe is fixed. The diameter of the inlet pipe of the flushing water is 3/4', the water pressure is not lower than 0.3Mpa, and the flushing water and the ash cooling water are the same water source. The water inlet main pipe is led out. The cooling water pipe is installed according to the requirements of the water supplementing system drawing. And installing a multifunctional electric valve for automatic water supplementing according to the overall design drawing of the design institute.
Step ten installation of electrical control system
(1) The control cabinet is arranged on the bracket. The control cabinet is firmly connected with the bracket.
(2) The connection between the electric control cabinet and the slag dragging machine can ensure that the slag dragging machine can transversely open to a maintenance position.
(3) And installing a broken chain protection device and debugging on site.
Step eleven device commissioning
1. Checking before debugging and starting, and comprehensively checking the equipment before the equipment is debugged and started, wherein the checking mainly comprises the following steps:
a. whether other articles and sundries irrelevant to equipment exist on each part of the slag dragging machine or not, and if so, the slag dragging machine needs to be cleaned completely;
b. checking whether bolts on main parts (such as a hydraulic motor, a driving shaft assembly, guide wheel assemblies, a torque arm, a support thereof, guide wheel assemblies, dragging chain wheels thereof and the like) are screwed, and whether lubricating oil or lubricating grease is filled in each rotating piece and each bearing seat;
c. checking whether all the blades are in place with the chain link locking pins assembled in place;
d. checking whether the oil level in an oil tank of the hydraulic driving system meets the related requirements in the installation and use specifications of the hydraulic driving system and the use specifications of the hydraulic tensioning mechanism;
e. it is checked whether the chain has been tensioned. Before each start-up, it is necessary to check whether the chain is tensioned or not, not allowing the chain to start the motor in a relaxed state.
f. And confirming whether the wiring of the electric cabinet and the steering of the motor are correct.
2. Electrical control commissioning
2.1 button operation test
a. The driving button can be pressed to drive, the stopping button can be pressed to stop, and the slag dragging machine is not provided with a reversing function.
b. The following experiment can be carried out on the slag conveyor with the electric self-starting mechanism:
when the forward button is pressed, the slag dragging machine can move forward on the steel rail, and when the button is released, the forward movement is stopped.
When the backward movement button is pressed, the slag dragging machine can move backward on the steel rail, and when the button is released, the forward movement is stopped.
The electric self-driving mechanism for transverse movement of the slag dragging machine can be engaged with the traveling wheel, and the electric self-driving mechanism and the traveling wheel can be pulled by a rope to transversely move after being disengaged.
2.2 Cooling Water over-temperature alarm test
When the water temperature exceeds 60 ℃, a temperature relay arranged at the upper part of a water bin of the slag dragging machine can give an alarm in an electric control way so as to adjust the cooling water quantity.
The temperature relay is connected with the electric control and the probe is inserted into the water container with the temperature display, and when the water temperature is slowly increased to 57-60 ℃, the electric control gives an alarm.
After the temperature relay is debugged, the temperature relay is arranged in a reserved seat hole on the bin wall of the slag dragging machine.
2.3 debugging of a broken Link detection System
After the slag dragging machine is started, a thin iron sheet is used for shielding the induction end of the proximity switch, and whether the chain breakage detection device outputs a chain breakage signal is checked. If the debugging of each item is abnormal, the cause checking and elimination can be referred to the description of the use of the electric control cabinet of the scraper slag dragging machine.
3. Debugging of hydraulic tensioning system
The debugging of the hydraulic tensioning system mainly comprises the debugging of each working pressure and the accumulator, and please refer to the detailed description in the hydraulic tensioning mechanism use instruction.
3.1 debugging of Hydraulic drive System and protection function
The debugging of this part is described in detail in the description of the control system of the scraper slag conveyor.
3.2 Dry run experiments
After the installation and debugging of the electric and mechanical devices are finished, the device runs for 2 hours at the speed of the slow, medium and fast scraping plates in turn, and the conditions of bearing temperature rise (less than or equal to 25 ℃), engagement of chain links and chain wheels, connection of chain links (chain connecting links), connection of the scraping plates and the chain links, oil-water leakage and the like are carefully observed, and if abnormal conditions exist, the device must be stopped in time for removal.
By using the method for equipment installation, the equipment installation time is shortened, the aim of saving the construction period is achieved, and the equipment installation efficiency and quality are improved.
The technical means disclosed by the scheme of the invention is not limited to the technical means disclosed by the embodiment, and also comprises the technical scheme formed by any combination of the technical features. It should be noted that modifications and adaptations to the invention may occur to one skilled in the art without departing from the principles of the present invention and are intended to be within the scope of the present invention.
Claims (8)
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20170128755A (en) * | 2016-05-13 | 2017-11-23 | 칭다오 다넹 인바이런멘틀 프로텍션 이큅먼트 인코포레이티드 컴퍼니 | Hoper scale dry slag conveyor system |
| CN110745574A (en) * | 2018-07-24 | 2020-02-04 | 中国二十冶集团有限公司 | Installation method of gate type scraper reclaimer |
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2023
- 2023-06-28 CN CN202310776025.XA patent/CN116857662A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
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| KR20170128755A (en) * | 2016-05-13 | 2017-11-23 | 칭다오 다넹 인바이런멘틀 프로텍션 이큅먼트 인코포레이티드 컴퍼니 | Hoper scale dry slag conveyor system |
| CN110745574A (en) * | 2018-07-24 | 2020-02-04 | 中国二十冶集团有限公司 | Installation method of gate type scraper reclaimer |
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| 王建忠: "《600MW火力发电机组安装作业丛书 锅炉分册》", 30 June 2006, 北京：中国电力出版社, pages: 152 - 161 * |
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